CN112477307B - Gauze mask based on electrosorption effect - Google Patents
Gauze mask based on electrosorption effect Download PDFInfo
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- CN112477307B CN112477307B CN202011325165.8A CN202011325165A CN112477307B CN 112477307 B CN112477307 B CN 112477307B CN 202011325165 A CN202011325165 A CN 202011325165A CN 112477307 B CN112477307 B CN 112477307B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/113—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a vertical fold or weld
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/30—Non-woven
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/50—Synthetic resins or rubbers
- A41D2500/52—Synthetic resins or rubbers in sheet form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
Abstract
The invention discloses an electric adsorption-based mask, which comprises a mask body from an outer layer to an inner layer in sequence: the composite material comprises a first non-woven fabric layer, a first PTFE/graphene composite nanofiber membrane layer, a PTFE nanofiber membrane layer, a second PTFE/graphene composite nanofiber membrane layer and a second non-woven fabric layer. The power supply part is further included, and the power supply part and the second layer and the fourth layer of the main body part form electrode layers for stabilizing charge distribution as a main part of an electric adsorption effect. The mask is simple in structure and convenient to wear, and has the thickness similar to that of a traditional disposable mask; meanwhile, the positive and negative electrode layers of the PTFE/graphene composite nanofiber membrane with the larger aperture and the PTFE/graphene composite nanofiber membrane with the small aperture continuously generate an electric adsorption effect to block tiny dust and germs by using continuous electricity supply, and charges cannot be dissipated along with the increase of wearing time.
Description
Technical Field
The invention relates to a mask, in particular to a mask based on an electric adsorption effect.
Background
Air pollution and history of infections depending on air and spray spreading cause serious health risks in modern life. The air pollution includes particulate matters such as PM2.5 and dust and the like caused by industrial pollution, and the infectious diseases include various influenza viruses, coronavirus and the like transmitted by droplets. Therefore, no matter medical personnel or ordinary personnel are required to wear the mask to play a protective role in outdoor and special indoor working environments.
Most of the existing masks are based on traditional physical barrier protection, and the effect is not ideal. In the atmosphere, particulates are generally positively/negatively charged, whereas particulate fines, such as PM2.5, of smaller particle size are generally positively charged. The N95 mask realizes better dust and virus blocking effect based on electrostatic adsorption effect. However, the electret film in the N95 mask cannot be recycled for the second time after being charged for the first time, and the performance of the N95 mask is not much different from that of a common mask after the electret charge is dissipated.
Disclosure of Invention
The purpose of the invention is as follows: to the above prior art, a mask based on an electric adsorption effect is provided, which can maintain a stable charge number through an electrode layer by continuous charging, thereby realizing continuous high-performance electric adsorption.
The technical scheme is as follows: the utility model provides a gauze mask based on electrosorption effect, gauze mask main part includes from skin to inlayer in proper order: the composite material comprises a first non-woven fabric layer, a first PTFE/graphene composite nanofiber membrane layer, a PTFE nanofiber membrane layer, a second PTFE/graphene composite nanofiber membrane layer and a second non-woven fabric layer; wherein the aperture of the first non-woven fabric layer and the second non-woven fabric layer is 10-20um, and the thickness is 200-250 um; the aperture of the first PTFE/graphene composite nanofiber membrane layer is 5-10um, and the thickness of the first PTFE/graphene composite nanofiber membrane layer is 9-12 um; the pore diameter of the PTFE nano-fiber film layer is 3-5um, and the thickness is 9-12 um; the aperture of the second PTFE/graphene composite nanofiber membrane layer is 1-3um, and the thickness of the second PTFE/graphene composite nanofiber membrane layer is 9-12 um;
still including connecting power supply part on the gauze mask main part, power supply part's positive pole is connected first PTFE/graphite alkene composite nanofiber rete, power supply part's negative pole is connected second PTFE/graphite alkene composite nanofiber rete.
Has the advantages that: the mask is simple in structure, low in cost and convenient to wear, and has the thickness similar to that of a traditional disposable mask; meanwhile, the positive electrode layer and the negative electrode layer of the PTFE/graphene composite nanofiber membrane continuously generate an electric adsorption effect to block tiny dust and germs by using continuous electricity supply, and charges are not dissipated along with the increase of wearing time.
Drawings
FIG. 1 is a schematic view of the mask of the present invention;
FIG. 2 is a schematic diagram of a five-layer structure of the mask body of the present invention;
FIG. 3 is a schematic view of a first nonwoven fabric layer structure;
FIG. 4 is a schematic structural view of a first PTFE/graphene composite nanofiber membrane layer;
FIG. 5 is a schematic structural diagram of a PTFE nanofiber membrane layer;
fig. 6 is a schematic structural diagram of a second PTFE/graphene composite nanofiber membrane layer.
Detailed Description
The invention is further explained below with reference to the drawings.
As shown in fig. 1, a mask based on an electro-adsorption effect includes a mask body 1 for covering a mouth and a nose of a wearer, and two elastic hanging strings 2 connected to the mask body 1, wherein the elastic hanging strings 2 are fixed to the mask body 1 by ultrasonic welding, thermal welding, adhesive bonding, or sewing. The power supply part 3 is fixedly connected to the outer side of the mask body 1.
As shown in fig. 2, the mask body comprises, in order from the outer layer to the inner layer: a first non-woven fabric layer 11, a first PTFE/graphene composite nanofiber membrane layer 12, a PTFE nanofiber membrane layer 13, a second PTFE/graphene composite nanofiber membrane layer 14, and a second non-woven fabric layer 15, which are fixed to each other by sewing, thermal welding, ultrasonic welding, and an adhesive. As shown in FIG. 3, the first non-woven fabric layer 11 and the second non-woven fabric layer 15 have a pore size of 10-20 μm and a thickness of 200-250 μm. As shown in fig. 4, the aperture of the first PTFE/graphene composite nanofiber membrane layer 12 is 5-10um, the thickness is 9-12um, and the medium-black hexagon in the figure is a schematic graphene diagram. As shown in FIG. 5, the pore diameter of the PTFE nanofiber membrane layer 13 is 3-5um, and the thickness is 9-12 um. As shown in fig. 6, the second PTFE/graphene composite nanofiber membrane layer 14 has a pore size of 1-3um and a thickness of 9-12 um.
The power supply part comprises a button battery 16 convenient to replace, the positive electrode of the button battery 16 is connected with the first PTFE/graphene composite nanofiber membrane layer 12, and the negative electrode of the button battery 16 is connected with the second PTFE/graphene composite nanofiber membrane layer 14.
According to the mask based on the electro-adsorption effect, the first non-woven fabric layer 11 is used for filtering large-diameter dust particles and is compounded with the three inner low-strength nanofiber membranes together with the second non-woven fabric layer 15 to serve as a supporting structure.
The first PTFE/graphene composite nanofiber membrane layer 12 and the second PTFE/graphene composite nanofiber membrane layer 14 are formed by spraying graphene solutions on two sides of a PTFE nanofiber membrane through a spraying process and then drying in vacuum. The PTFE nanofiber membrane provides a physical support and electrode material for graphene.
The PTFE nanofiber membrane in the PTFE nanofiber membrane layer 13, the first PTFE/graphene composite nanofiber membrane layer 12 and the second PTFE/graphene composite nanofiber membrane layer 14 is prepared through an electrostatic spinning process, and nanofiber membranes with different apertures and thicknesses can be prepared by adjusting technological parameters of electrostatic spinning.
When the power supply supplies power, positive and negative charges are respectively accumulated on the first PTFE/graphene composite nanofiber membrane layer 12 and the second PTFE/graphene composite nanofiber membrane layer 14. The graphene on the two side films is used for capturing electrons to form stable accumulated charges, wherein the first PTFE/graphene composite nanofiber film layer 12 is electropositive and can be adsorbed to negatively charged particles or the particles are electropositive; the second PTFE/graphene composite nanofiber membrane layer 14 is negatively charged and can adsorb uncharged or positively charged particles.
Particles in air are positively, negatively or uncharged due to ionization, and most of them are positively charged for dust particles having a particle size of less than 2.5 um. When the tiny dust or germ enters the mouth through the mask, the purification of the inhaled gas is realized through the following steps of physical separation or adsorption: the first nonwoven fabric layer 11 physically blocks fine dusts having a particle size larger than the pore size thereof. The first PTFE/graphene composite nanofiber membrane layer 12 physically blocks off particles having a diameter larger than its pore size, and negatively charged particles slightly smaller than their pore size are also adsorbed onto the second layer. For uncharged micro-dust or germs smaller than the pore diameter of the second layer material, according to the charge redistribution principle, the micro-dust or germs and positive charges on the PTFE/graphene composite nanofiber membrane are redistributed, so that the PTFE/graphene composite nanofiber membrane is positively charged, and for the positively charged micro-dust or germs, the like poles repel each other, and the positively charged micro-dust or germs can rapidly pass through the fiber membrane. The PTFE nano-fiber film layer 13 is used as an insulating layer to ensure that the front electrode layer and the rear electrode layer are not in electric contact, so that stable charge distribution is generated, and the other function is similar to that of the first layer of large-aperture non-woven fabric and mainly used for physically blocking off tiny dust or germs larger than the aperture of the first layer. After the first four layers of nano films are physically blocked or electrically adsorbed and removed, the passing micro dust or germs have positive electricity, so that the second PTFE/graphene composite nano fiber film layer 14 mainly adsorbs the micro dust or germs with the smallest particle size in an electric adsorption mode.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a gauze mask based on electrosorption effect which characterized in that, the gauze mask main part includes from skin to inlayer in proper order: the composite material comprises a first non-woven fabric layer, a first PTFE/graphene composite nanofiber membrane layer, a PTFE nanofiber membrane layer, a second PTFE/graphene composite nanofiber membrane layer and a second non-woven fabric layer; wherein the aperture of the first non-woven fabric layer and the second non-woven fabric layer is 10-20 μm, and the thickness is 200-250 μm; the aperture of the first PTFE/graphene composite nanofiber membrane layer is 5-10 mu m, and the thickness of the first PTFE/graphene composite nanofiber membrane layer is 9-12 mu m; the pore diameter of the PTFE nano fiber membrane layer is 3-5 μm, and the thickness is 9-12 μm; the pore diameter of the second PTFE/graphene composite nanofiber membrane layer is 1-3 mu m, and the thickness of the second PTFE/graphene composite nanofiber membrane layer is 9-12 mu m;
still including connecting power supply part on the gauze mask main part, power supply part's positive pole is connected first PTFE/graphite alkene composite nanofiber rete, power supply part's negative pole is connected second PTFE/graphite alkene composite nanofiber rete.
2. The mask according to claim 1, wherein the materials of the layers of the mask body are fixed to each other by sewing, thermal welding, ultrasonic welding, adhesive.
3. The mask according to claim 1, wherein the first PTFE/graphene composite nanofiber membrane layer and the second PTFE/graphene composite nanofiber membrane layer are formed by spraying a graphene solution on both sides of a PTFE nanofiber membrane through a spraying process and then vacuum-drying the two layers.
4. The mask according to claim 3, wherein the PTFE nanofiber membrane layer and the PTFE nanofiber membranes of the first PTFE/graphene composite nanofiber membrane layer and the second PTFE/graphene composite nanofiber membrane layer are prepared by an electrospinning process.
5. The mask according to claim 3, wherein the power supply part comprises a button battery for easy replacement.
6. The mask according to claim 3, further comprising two elastic hanging strings connected to the mask body, wherein the elastic hanging strings are fixed to the mask body by ultrasonic welding, thermal welding, adhesive bonding or sewing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325165.8A CN112477307B (en) | 2020-11-24 | 2020-11-24 | Gauze mask based on electrosorption effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325165.8A CN112477307B (en) | 2020-11-24 | 2020-11-24 | Gauze mask based on electrosorption effect |
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| Publication Number | Publication Date |
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| CN112477307A CN112477307A (en) | 2021-03-12 |
| CN112477307B true CN112477307B (en) | 2022-03-01 |
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| CN202011325165.8A Active CN112477307B (en) | 2020-11-24 | 2020-11-24 | Gauze mask based on electrosorption effect |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424378A (en) * | 2020-04-24 | 2020-07-17 | 河南曼博睿新材料科技有限公司 | Nano fiber membrane for mask and manufacturing method thereof |
| CN111436685A (en) * | 2020-03-30 | 2020-07-24 | 北京化工大学 | Antibacterial mask capable of continuously charging for long time |
| CN111590984A (en) * | 2020-06-19 | 2020-08-28 | 创斯(广州)科技发展有限公司 | Environment-friendly three-in-one material for laminating hot melt adhesive for mask and preparation method thereof |
| CN111887524A (en) * | 2020-09-21 | 2020-11-06 | 费植煌 | Active antibacterial graphene mask |
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2020
- 2020-11-24 CN CN202011325165.8A patent/CN112477307B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436685A (en) * | 2020-03-30 | 2020-07-24 | 北京化工大学 | Antibacterial mask capable of continuously charging for long time |
| CN111424378A (en) * | 2020-04-24 | 2020-07-17 | 河南曼博睿新材料科技有限公司 | Nano fiber membrane for mask and manufacturing method thereof |
| CN111590984A (en) * | 2020-06-19 | 2020-08-28 | 创斯(广州)科技发展有限公司 | Environment-friendly three-in-one material for laminating hot melt adhesive for mask and preparation method thereof |
| CN111887524A (en) * | 2020-09-21 | 2020-11-06 | 费植煌 | Active antibacterial graphene mask |
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| CN112477307A (en) | 2021-03-12 |
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